I imagine this functionality could be rolled in as a plugin, but I
scouted around all the usual plugin repositories and didn't find
anything that really fit the bill.
Suggestions?
You *can* use combinations of tags *if* you have installed
http://www.TiddlyTools.com/#MatchTagsPlugin
From GotoPluginInfo:
-----------------
filter: is a single tag value (or a boolean tag expression if
MatchTagsPlugin is installed), and is used to limit the search to only
those tiddlers matching the indicated tag or tag expression (e.g.,
<<gotoTiddler filter:"faq or help">>)
-----------------
enjoy,
-e